Temperature And Pressure Testing System Research Of Fiber Bragg Gratings

The fiber-optic Bragg light grid spreads a feeling machine, as a kind of machine that is new to spread feeling, have anti- electromagnetism interference and insulate function well, anti- corrosion, intelligent degree Gao, small physical volume and light weight, measure scope widely etc. advantage, fiber-optic Bragg only the grid spread an accurate degree of the diagraph of feeling machine the influence that is only free from strong motion and exhausts, can carry out the distribute type diagraph system and wave to reply to use to spread a feeling network for cent.Fiber optic light grid's spreading a feeling machine and passing bare variety to pick up is measured signal, this kind of spreads the petroleum chemical engineering that the feeling machine applies easy Ran very much and easily explodes realm.Therefore, the fiber-optic Bragg light grid spreads a feeling machine to have in the petroleum chemical engineering realm extensive of applied prospect.This text puts forward in spreading feeling technique and its solution to adjust a project to carry on the foundation that goes deep into a research to the domestic and international fiber optic light grid a kind of with STC89 C516 RD+list slice machine for core processor, combine an adjustable chamber of Xie F-P to only filter fiber-optic Bragg of wave technique light the grid temperature press strong examination system project.This text elaborated first that the fiber-optic Bragg light grid spreads the basic principle of feeling, and adjusted a method to carry on thorough research analysis currently to the in common use solution.Improved an original solution to adjust a project, design with fiber-optic Bragg light grid for sensitive spare part, the adoption enlarges self-moving radiation light source(ASE), and combine the forerunner's adjustable chamber of Xie F-P to only filter a light road that technique constitutes system.This thesis point research and design fiber-optic Bragg light the grid spread a feeling machine signal examination electric circuit system.The adoption cuts one steady zero integration the operation enlarge the electric circuit ICL7650 and designed the electric circuit of enlarging of Gao Zeng Yi, tall stable and low drift by oneself, effectively overcame the importation of interference signal and raised the accurate degree of signal.This text according to the STC89 C516 of the Taiwan great crystal science and technology company RD+the tiny controller designed control and signal of examination system to handle system, including the power electric circuit, reset electric circuit and show that the tiny controller outer circles, such as electric circuit and electric circuit RS-232...etc. expands electric circuit.This text designed 1 kind according to press the solution telecommunication of electricity porcelain and ceramics to adjust unit, adopted the United States to imitate number companies to lately release of 16 Ds|A conversion the electric circuit chip AD669, effectively raised the scanning accuracy of system.The experiment expresses that fiber-optic Bragg designing this research light grid temperature's pressing strong examination system is a kind of very nice examination method.